Reconstruction of a depth velocity model by full waveform inversion

Reconstruction of a depth velocity model by full waveform inversion Full article

Journal

Doklady Earth Sciences
ISSN: 1028-334X , E-ISSN: 1531-8354

Output data

Year: 2017, Volume: 476, Number: 2, Pages: 1233-1237 Pages count : 5 DOI: 10.1134/s1028334x17100221

Authors

Gadylshin K.G. ¹ , Cheverda V.A. ¹

Affiliations

1	Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia

The consecutive numerical method is implemented for construction of a depth velocity model by full waveform inversion. The inverse dynamic seismic problem is reduced to finding the minimum point of the objective functional characterizing the mean square deviation of the recorded data from those calculated for the current model of the medium. A distinctive feature of the proposed approach is decomposition of the model space into two components: a smoothly varying propagator (macrovelocity model) and a rapidly spatially varying component called a reflector. The minimum point is calculated in sequence in these two subspaces. This paper reports the obtained data on numerical experiments related to reconstruction of the Marmoussi2 velocity model using a real frequency range and a source-receiver offset.

Gadylshin K.G. , Cheverda V.A.
Reconstruction of a depth velocity model by full waveform inversion
Doklady Earth Sciences. 2017. V.476. N2. P.1233-1237. DOI: 10.1134/s1028334x17100221 WOS Scopus OpenAlex

Submitted:	May 4, 2017
Published print:	Nov 4, 2017
Published online:	Nov 4, 2017

≡ Web of science:	WOS:000414357900028
≡ Scopus:	2-s2.0-85032934011
≡ OpenAlex:	W2766417675